NEET BIOLOGY

Detailed explanation-1: -The photosynthates from the source are usually translocated to the nearest sink through the phloem sieve tube elements. For example, the highest leaves will send sugars upward to the growing shoot tip, whereas lower leaves will direct sugars downward to the roots.

Detailed explanation-2: -Phloem moves sugar that the plant has produced by photosynthesis to where it is needed for processes such as: growing parts of the plant for immediate use. storage organs such as bulbs and tubers.

Detailed explanation-3: -Sieve tubes are a component of the phloem in plants. They function as the vessle that transports organic food and other material across the plant.

Detailed explanation-4: -PRESSURE FLOW IN A PLANT The vascular system of plants has two transport tissues, called xylem and phloem. Xylem transports water and minerals, while phloem transports a variety of dissolved substances, including sugars and amino acids, throughout the plant.

Detailed explanation-5: -SIEVE ELEMENTS (OF PHLOEM) Sieve elements are specialized cells that function in the conduction of sugars. They are typically associated with parenchyma and often some sclerenchyma in a common tissue known as phloem (Gr. phloe, bark, after the location of secondary phloem in the inner bark).